CN103037779B - There is the motor driven surgical fastener device of cutting element changement - Google Patents
There is the motor driven surgical fastener device of cutting element changement Download PDFInfo
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- CN103037779B CN103037779B CN201180036978.8A CN201180036978A CN103037779B CN 103037779 B CN103037779 B CN 103037779B CN 201180036978 A CN201180036978 A CN 201180036978A CN 103037779 B CN103037779 B CN 103037779B
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- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
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- A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
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- A61B2090/309—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure using white LEDs
Abstract
The invention discloses a kind of surgical fastener equipment, described surgical fastener equipment comprises: shank; Slender axles, described slender axles have the near-end being attached to shank and the far-end extended from slender axles; End effector, described end effector is included in its proximal end pivotable and a pair jaw that can move between the open and the closed positions; And comprising the storehouse of multiple surgical fastener, described storehouse is attached to end effector; For disposing the electric actuator of surgical fastener; Electricity for slender member to be moved to proximal position from the farthest side position in end effector starts changement, described electricity starts changement after slender member has been moved to farthest side position by making slender member proximally move to open position trigger movement, and wherein after changement starts, stop slender member motion proximally by making trigger turn back to its make position.
Description
The cross reference of related application
This non-provisional application is the U.S. Patent Application Serial Number 12/693 that the name of authorizing the people such as RyanJ.Laurent submitted on January 26th, 2010 is called " DrivenSurgicalStaplerImprovements ", the part continuation application of 462, the name of authorizing RyanJ.Laurent that this application requires on February 6th, 2009 to submit to is called the U.S.Provisional Serial 61/150 of " Motor-DrivenSurgicalStaplerImprovements ", the priority of 391, whole disclosures of every part of application are incorporated herein by reference in full.
Background technology
Be suitable for the example of the surgical stapling device of endoscope type application in U.S. Patent No. 5,465, described by having in 895, this full patent texts is incorporated herein by reference.Such device comprises the inner cutter with different closed and firing actions.Disclosed in motor drives the name that another example is being published on August 2nd, 2007 of surgical stapling device to be called in the U.S. Patent Application Publication No.US2007/0175958A1 of " Motor-DrivenSurgicalCuttingandFasteningInstrumentWithUse rFeedbackSystem " to have, this application is incorporated herein by reference in full.Extracts disclosed in this type of proposes its basic function, improvement, background and parts are described in detail in detail in this article.Finally disclose other improvement of this system.
U.S. Patent Application Publication No.US2007/0175958A1 partly proposes, and " [a] uses the clinician of this device jaw member can be closed organizationally with position tissue before percussion.Once clinician determines that jaw member has correctly clamped tissue, clinician and available clicking are sent out stroke or many firing stroke (depending on device) and are pulled the trigger surgical stapling device.Percussion surgical stapling device makes tissue be cut off and sews up.Carry out cutting off and sewing up avoiding the issuable complication when utilizing the different surgical technique and tools only carrying out cutting off and sew up respectively to perform these actions successively simultaneously.”
A concrete advantage that can close organizationally is before firing whether clinician can reach desirable cutting position via splanchnoscopy, comprises and whether between relative jaw, catches enough tissues.Otherwise relative jaw may be near by La get Tai, particularly hold together at their far-end folder, and therefore can not effectively form closed staple in cut-out tissue.Another extreme case is, may be made constraint and not exclusively percussion by the excessive tissue clamped.
Every generation endoscopic suture device/sickle all constantly strengthens in complexity and function aspects.One in the main cause of this situation degree being to pursue percussion force (FTF) to be reduced to all surgeon or most of surgeon and all can to manipulate.The known solution reducing FTF uses C02 motor or electro-motor.The percussion of these devices is well a lot of unlike traditional hand gear, but the reason having them different.Surgeon is more ready that experiencing the power proportional with the power when making staple formation suffered by end effector distributes usually, to guarantee to complete cutting/stitching circulation in the upper limit (being generally about 15-30lbs) of most of surgeon's ability.If the force feeling experienced in device shank is excessive or due to some other clinical reasons, they also wish to keep the control to staple is disposed also can stop at any time usually.These are for the feedback effect of user, fail to drive in inner cutter at existing motor suitably to realize.Therefore, drive inner cutter for cutting/sew application only by the motor clicking button to activate, doctor does not also generally accept.
Above-mentioned discussion just to illustrating the some shortcomings existed at present in technical field, and should not regard the negative to right as.
Summary of the invention
According to a general aspect of the present invention, provide a kind of surgical fastener equipment, it comprises shank; Slender axles, these slender axles have the near-end being attached to shank and the far-end extended from it.End effector is couple to slender axles and comprises a pair jaw, and jaw is in its proximal end pivotable and can move between the open and the closed positions.The storehouse comprising multiple surgical fastener is attached to end effector.This equipment also comprises the electric actuator for disposing surgical fastener.In various embodiments, actuator comprises power supply and motor and comprises slender member, and this slender member extends through axle and can distally move into end effector for deployment staple.Slender member also can proximally move out end effector backward.In certain embodiments, trigger is attached to shank and has the make position of open position and wherein flip-flop toggle actuator.The changement that this surgical device also comprises electricity startup moves to proximal position for by slender member from the farthest side position in end effector.The changement that electricity starts after slender member has been moved to farthest side position by by trigger movement to open position proximally motion slender member.After changement starts, stop slender member motion proximally by trigger is turned back to make position.
According to another general aspect of the present invention, provide a kind of surgical fastener equipment comprising shank, shank has the end effector be operationally couple on it.Actuator can unactuated position in end effector in end effector and moving between actuated position.Engage optionally apply distally actuation movement to make actuator move to actuated position from unactuated position to it electro-motor and actuator operable, and optionally apply nearside actuation movement actuator is retracted to unactuated position from actuated position to actuator.In various embodiments, this equipment also comprises the motor control circuit for controlling motor, and this circuit comprises and is connected to motor for the power supply to motor power supplying.This equipment also comprises current control circuit, and it is connected to power supply for the electric current controlling to be supplied to from power supply motor.Current control circuit can make motor apply distally actuation movement to actuator and make motor apply nearside actuation movement to actuator when receiving retraction signal when receiving actuating movement.Current control circuit can also change the applying of nearside actuation movement when receiving the retracting motion applied to it.
According to another general aspect of the present invention, provide a kind of surgical fastener equipment, they slender axles comprising shank and there is the near-end being attached to shank.Passage is couple to the far-end of slender axles and the surgery storehouse that can operationally support wherein.Actuator is supported movingly distally advances with nearside in passage.Percussion trigger is operationally couple to shank.Retraction trigger is operationally supported on percussion trigger.Engage optionally apply distally actuation movement to it to make actuator from unactuated position distal motion to actuated position electro-motor and actuator operable, and optionally apply nearside actuation movement actuator is retracted to unactuated position from actuated position to actuator.This equipment also comprises the motor control circuit for controlling motor.In various embodiments, motor control circuit comprises and is connected to motor for the power supply to motor power supplying.Motor control circuit also comprises current control circuit, and it is connected to power supply for the electric current controlling to be supplied to from power supply motor.In various embodiments, current control circuit comprises operation motor control switch, its be connected to power supply and by percussion trigger operation, making when applying actuating movement to percussion trigger, running motor control switch and allowing electric current to flow to motor to make motor apply distally actuation movement to actuator along first direction.Current control circuit also comprises communtation motor switch, and it is connected to power supply, makes when actuator has been moved to farthest side actuated position, and communtation motor switch allows electric current to flow to motor along second direction, to make motor, nearside actuation movement is applied to actuator.Retraction switch is connected to power supply and by retraction trigger operation, make when retracting motion being applied to retraction trigger, retraction switch changes electric current along second direction to the flowing of motor.
A general aspect, the present invention relates to Motorized surgical cutting and fastening instrument, described apparatus provides the feedback about the position of end effector, power and/or deployment to user.In various embodiments, this apparatus also allows operator to control end effector, comprises and can stop when needed disposing.This apparatus can comprise two triggers (closure trigger and percussion trigger) at its shank, has performing an action separately.When the operator of this apparatus bounces back closure trigger, end effector can clamp the tissue be positioned in end effector.Then, when operator bounces back percussion trigger, motor can provide power via pinion unit to the final drive shaft assembly rotated, and makes the cutting device in end effector cut off nipped tissue.
In various embodiments, this apparatus can comprise the power assist system having loading force feedback and control, and to reduce percussion force needed for operator's applying, thus completes cutting operation.In this type of embodiment, percussion trigger is engageable in the pinion unit of final drive shaft assembly.By such mode, operator can experience the feedback about the power be applied on cutting device.That is, the loading force that the loading force on percussion trigger may be subject to cutting device is relevant.Same in this type of embodiment, because percussion trigger is engaged to pinion unit, the power that operator applies can be added to and act in the power of motor.
According to each embodiment, when pulling the trigger amount (such as 5 degree) that trigger bounces back suitable, actuatable on/off switch, sends signal to rotate by the speed of specifying to motor, thus starts to activate transmission shaft component and end effector.According to other embodiment, can usage ratio sensor.Proportional sensor can send signal to rotate by the speed of specifying to motor, and it is proportional that this speed and operator are applied to the power pulling the trigger trigger.By such mode, position of rotation and the position of cutting device in end effector (such as, dispose completely or bounce back completely) of percussion trigger are roughly proportional.Operator a bit can also stop retraction percussion trigger to stop motor in certain of stroke, thus stops cutting movement.In addition, sensor can be used to detect the starting point (such as, complete advanced position) of end effector stroke and the terminal (such as, complete deployed position) of stroke respectively.Therefore, sensor can provide Adaption Control System, in order to control the deployment of end effector outside the closed loop system of motor, pinion unit and end effector.
In other embodiments, pull the trigger trigger can not be directly engaged against for starting in the pinion unit of end effector.In this type of embodiment, available second motor is afterburning to percussion trigger, to simulate the deployment of cutting device in end effector.The second motor can be controlled according to the increment of rotation of the final drive shaft assembly measured by rotary encoder.In this type of embodiment, the position of rotation of percussion trigger can be relevant to the cutting device position in end effector.In addition, on/off switch or ratio switch can be used to control main motor (being the motor that final drive shaft provides power).
In each is specifically implemented, end effector can use worm drive screw rod to drive cutting device (such as cutter) at the pedestal of end effector.End effector also can comprise for sewing up the storehouse cutting off tissue.According to other embodiment, other method fastening (or closing) can be used to cut off tissue, comprise radio-frequency (RF) energy and binding agent.
Described apparatus also can comprise mechanical closure system.Mechanical closure system can comprise elongated passageway, and this passage has clamping component such as anvil block, and this clamping component is pivotably connected to this passage, to clamp the tissue being arranged in end effector.User starts the pinching action of end effector by retraction closure trigger, and described closure trigger realizes the pinching action of end effector by mechanical closure system.Once clamping component locking in place, namely operator independently pulls the trigger trigger by retraction and starts cutting operation.This can make cutting device be longitudinally travelled along passage, to cut the tissue clamped by end effector.
In each is specifically implemented, described apparatus can comprise the final drive shaft assembly of the rotation for starting end effector.In addition, final drive shaft can comprise articulated joint, and end effector can be connected by joint.Articulated joint can comprise the flexible torsional cable that torsion maybe can be delivered to end effector by such as bevel gear assembly, universal joint.
Other side of the present invention relates to the various mechanisms of the pistol grip part for closure trigger being locked onto shank bottom.This type of embodiment by be positioned in shank directly over trigger and dead astern space empty out, for other parts of apparatus, comprise the parts of pinion unit and mechanical closure system.
Disclosure herein shows the detailed description of the invention of gear drive that actuating battery powers independently endoscope type stitching devices.
Accompanying drawing explanation
In conjunction with the drawings and with reference to the following explanation of embodiments of the invention, above-mentioned and further feature of the present invention and advantage and acquisition methods thereof will become more obviously, and can understand invention itself better, wherein:
Fig. 1 and Fig. 2 is the perspective view of surgical cutting according to each embodiment of the present invention and fastening instrument;
Fig. 3-5 is decomposition views of end effector according to the apparatus of each embodiment of the present invention and axle;
Fig. 6 is the side view of the end effector according to each embodiment of the present invention;
Fig. 7 is the decomposition view of the shank of apparatus according to each embodiment of the present invention;
Fig. 8 and Fig. 9 is the fragmentary, perspective view of the shank according to each embodiment of the present invention;
Figure 10 is the side view of the shank according to each embodiment of the present invention;
Figure 10 A-10B illustrates the proportional sensor or switch that can use according to each embodiment of the present invention;
Figure 11 is the schematic diagram for the current control circuit in the apparatus of each embodiment according to the present invention;
Figure 12 is the side view of another shank according to each embodiment of the present invention;
Figure 13 is the schematic diagram for another current control circuit in the apparatus of each embodiment according to the present invention;
Figure 14 is the schematic diagram for another current control circuit in the apparatus of each embodiment according to the present invention;
Figure 15 is the schematic diagram for another circuit in the apparatus of each embodiment according to the present invention;
Figure 15 A is the schematic diagram for another current control circuit in the apparatus of each embodiment according to the present invention;
Figure 15 B is the schematic diagram for another current control circuit in the apparatus of each embodiment according to the present invention;
Figure 16-17 illustrates the different institutions for locked closed trigger according to each embodiment of the present invention;
Figure 18 is the schematic diagram for another current control circuit in the apparatus of each embodiment according to the present invention;
Figure 19 is the sectional view of end effector embodiment of the present invention;
Figure 20 is the side front view of knife assembly of the present invention or actuator embodiment;
Figure 21 is the side front view of another knife assembly of the present invention or actuator embodiment;
Figure 22 is the side front view of another knife assembly of the present invention or actuator embodiment;
Figure 23 is the perspective view of the far-end of surgical stapling device according to an embodiment of the invention;
Figure 24 is the perspective view of the far-end of surgical stapling device according to an embodiment of the invention, and wherein storehouse removes from passage;
Figure 25 is the view of the far-end of the according to an embodiment of the invention surgical stapling device similar with Fig. 1, there is shown locking display lamp;
Figure 26 is the perspective view of the near-end of surgical stapling device according to an embodiment of the invention.
Detailed description of the invention
The owner of present patent application also has the following U.S. Patent application submitted to same date with this patent, and these patents are correspondingly all incorporated to herein with way of reference separately:
Name is called the U.S. Patent application of the attorney END6547USCIP1/100270CIP1 of " MotorDrivenSurgicalFastenerDeviceWithCuttingMemberLockou tArrangements "; And
Name is called the U.S. Patent application of the attorney END6548USCIP1/100271CIP1 of " MotorDrivenSurgicalFastenerDeviceWithMechanismsForAdjust ingaTissueGapWithintheEndEffector ".
Now some exemplary embodiment will be described, to understand the structure of apparatus and method disclosed herein, function, manufacture and purposes on the whole.One or more examples of these embodiments are shown in the drawings.Those of ordinary skill in the art will be understood that, to describe and apparatus illustrated in the accompanying drawings and method are nonrestrictive exemplary embodiment especially herein, and the scope of the multiple embodiment of the present invention is only defined by the claims.Carry out the feature of graphic extension or description with regard to an exemplary embodiment, can with the characteristics combination of other embodiment.This modification and version are intended to comprise within the scope of the present invention.
" each embodiment ", " some embodiments ", " embodiment " or " embodiment ", " specifically implementing " or " each is specifically implemented " that this description is quoted in the whole text etc., refer to that specific features, structure or the characteristic described in conjunction with described embodiment comprises at least one embodiment.Therefore, this description occurs in the whole text phrase " in various embodiments ", " in certain embodiments ", " in one embodiment " or " in an embodiment ", " specifically implementing " or " each is specifically implemented " etc. all might not refer to identical embodiment or specifically implement.In addition, in one or more embodiment or concrete enforcement, specific features, structure or characteristic can be combined in any suitable manner.Therefore, without limitation, the specific features, structure or the characteristic that illustrate or describe in conjunction with an embodiment can be combined with the feature of other embodiment one or more, structure or characteristic whole or in part.This modification and version are intended to comprise within the scope of the present invention.
Term used herein " nearside " and " distally " are for the clinician of manipulation of surgical apparatus shank.Term " nearside " refers to the part near clinician, and term " distally " then refers to the part away from clinician.It is also understood that for succinct and clear for the purpose of, the spatial terminology of " vertically ", " level ", "up" and "down" and so on can be used such as herein by reference to the accompanying drawings.But surgical instruments uses in many directions and position, and these terms non-limiting and/or absolute.
Fig. 1 and Fig. 2 shows surgical cutting according to each embodiment of the present invention and fastening instrument 10.Illustrated embodiment is endoscopic surgical apparatus 10, and usually, the embodiment of the apparatus 10 that the application describes is endoscopic surgical cutting and fastening instrument.Such as, but it should be noted that, according to other embodiments of the invention, apparatus 10 can be non-endoscopic surgical cutting device, abdominal cavity mirror apparatus.
Surgical instruments 10 shown in Fig. 1 and Fig. 2 comprises shank 6, axle 8 and is pivotably connected to the articulating end effector 12 of axle 8 at joint motions pivot 14 place.Joint control portion 16 can be disposed adjacent to shank 6, rotates around joint pivot 14 to make end effector 12.Should be appreciated that different embodiments can comprise the end effector of non-pivoted, therefore may not have joint pivot 14 or joint control 16.In addition, in the illustrated embodiment in which, end effector 12 can be configured for clamping, cutting off and the inner cutter of suture tissue, although dissimilar end effector can be adopted in other embodiments, as the end effector of the surgical instruments for other type, such as clasper, sickle, stiching instrument, applicator, access to plant, medicine/gene therapy equipment, ultrasound wave, radio frequency or laser aid etc.
The shank 6 of apparatus 10 can comprise the closure trigger 18 for starting end effector 12 and pull the trigger trigger 20.Should be appreciated that the apparatus with the end effector relating to different surgery task can have trigger or other suitable controller of varying number or type for handling end effector 12.End effector 12 is shown as separating preferably by slender axles 8 and shank 6.In one embodiment, the operator of clinician or apparatus 10 can utilize joint control 16 to make end effector 12 carry out joint action relative to axle 8, as being called the U.S. Patent No. 7 of " SurgicalInstrumentHavingAnArticulatingEndEffector " in name by people such as GeoffreyC.Hueil, 670, in 334 in greater detail, this full patent texts is incorporated herein by reference.
In this example, in addition, end effector 12 comprises the elongated passageway 22 that is configured to the storehouse 34 operationally supported wherein and can the clamping components of pivotable translation, and such as anvil 24, anvil 24 is maintained at the spacing place guaranteeing effectively to sew up and cut off the tissue be clamped in end effector 12.Shank 6 comprises pistol grip 26, by clinician, closure trigger 18 is pulled to pistol grip 26 pivotally, to make anvil 24 clamp towards the elongated passageway 22 of end effector 12 or close, thus clamps the tissue be placed between anvil 24 and elongated passageway 22.Percussion trigger 20 is in the more lateral of closure trigger 18.As described further below, once closure trigger 18 is locked in make position, percussion trigger 20 can rotate it can be touched by operator's one hand towards pistol grip 26 a little.Then, percussion trigger 20 can pull to sew up and cut off the tissue be clamped in end effector 12 towards pistol grip 26 by operator pivotally.In other embodiments, the dissimilar clamping components except anvil 24 can be used, such as, relative jaw etc.
First closure trigger 18 can be started.Once clinician pleases oneself for the location of end effector 12, then closure trigger 18 can be returned to the position of completely closed, the locking of its contiguous pistol grip 26 by clinician.Then, percussion trigger 20 is driven.When clinician removes pressure, percussion trigger 20 turns back to open position (as depicted in figs. 1 and 2), as described more comprehensively below.When pressing the release-push on shank 6, locked closure trigger 18 can be discharged.Release-push can realize in many ways, such as, slip release-push 160 shown in Figure 16 and/or the button shown in Figure 17 172.
Fig. 3-6 illustrates the embodiment of rotary actuation end effector 12 according to each embodiment and axle 8.Fig. 3 is the decomposition view of the end effector 12 according to each embodiment.As in the illustrated example, except previously mentioned groove 22 and anvil 24, end effector 12 also can comprise sickle 32, slide block 33, be removably mounted on storehouse 34 in groove 22 and screw shaft 36.Such as, cutting device 32 can be cutter.As used herein, in conjunction with at least one embodiment, term " actuator " can refer to cutter and/or slide block.Anvil 24 can in pivot pin 25 place open and close pivotally, and pivot pin 25 is connected to the near-end of groove 22.Anvil 24 also can comprise the projection 27 being positioned at its proximal end, and described projection 27 inserts in the parts of mechanical closure system (further describing below) with open and close anvil 24.When closure trigger 18 driven namely pulled in the user of apparatus 10 time, anvil 24 can around pivot pin 25 proceed to clamping or make position.If the clamping of end effector 12 is satisfactory, then operator can drive percussion trigger 20, as described in more detail below, cutter 32 and slide block 33 is longitudinally travelled along groove 22, thus cuts the tissue be held in end effector 12.The staple (not shown) in storehouse 34 to push and through the tissue cut and the anvil 24 that reclines along moving of groove 22 by slide block 33, and this makes staple bend and organizing of cutting is fastening.In various embodiments, slide block 33 can be the integrated component in storehouse 34.Authorize Shelton, the name of the people such as IV is called the U.S. Patent No. 6 of " SurgicalStaplingInstrumentIncorporatinganE-beamFiringMec hanism ", 978,921 provide the more details about the cutting of such two-pass and fastening instrument, and this patent is incorporated herein by reference.Slide block 33 can be the part in storehouse 34, and make when cutter 32 bounces back after the cutting operation, slide block 33 does not bounce back.
Fig. 4 and Fig. 5 is the decomposition view of end effector 12 according to each embodiment and axle 8, and Fig. 6 is its side view.Just as shown in the illustrated embodiment, axle 8 can comprise the nearside closure tube 40 and distally closure tube 42 that are pivotally connected to by pivot connector 44.Distally closure tube 42 comprises opening 45, with open and close anvil 24 in projection 27 insertion opening 45 on anvil 24, as further described below.Nearside ridge pipe 46 can be arranged in closure tube 40,42.Main rotation (or nearside) power transmission shaft 48 be connected with time (or distally) power transmission shaft 50 via bevel gear assembly 52 can be arranged in nearside ridge pipe 46.Secondary power transmission shaft 50 is connected to the travelling gear 54 engaged with the nearside travelling gear 56 of screw shaft 36.Vertical bevel gear 52b can be arranged in nearside ridge pipe 46 far-end opening 57 and can pivotable wherein.Distally ridge pipe 58 can be used to encapsulate time power transmission shaft 50 and travelling gear 54,56.Sometimes final drive shaft 48, counter drive shaft 50 and joint motion assembly (such as bevel gear assembly 52a-c) entirety are called " final drive shaft assembly " in this article.
The bearing 38 being positioned at nail groove 22 far-end holds drive screw shaft 36, thus allows drive screw shaft 36 can rotate freely relative to groove 22.Screw shaft 36 can engage the threaded opening (not shown) of cutter 32, make the rotation of axle 36 make cutter 32 distally or nearside (according to direction of rotation) be translated across nail groove 22.Therefore, when final drive shaft 48 is forced to rotate (explaining in detail below) after actuating movement being applied to percussion trigger 20, bevel gear set 52a-c makes time power transmission shaft 50 rotate, this makes screw shaft 36 rotate due to the engagement of travelling gear 54,56 again then, and this makes cutter drive member 32 be clamped at any tissue in end effector 12 along passage 22 lengthwise rows and then cutting.Slide block 33 can be made up of such as plastics, and can have the distal surface of inclination.Because slide block 33 passes through groove 22, its angled front can above push away or drive the staple in storehouse to pass by the tissue clamped, and against anvil 24.Anvil 24 makes staple formation or bending, thus sews up the tissue cut off.When cutter 32 bounces back, cutter 32 and slide block 33 can depart from, thus make slide block 33 stay the far-end of groove 22.
Fig. 7-10 illustrates that motor drives the exemplary embodiment of inner cutter (particularly its shank), and this embodiment provides to be fed back about the deployment of the cutter sweep 32 in end effector 12 and the user of loading force.In addition, the power that this embodiment can utilize user to provide when retracting percussion trigger 20 comes apparatus energy supply (so-called " power-assisted " pattern).This embodiment can use together with the embodiment of axle 8 with above-mentioned rotary actuation end effector 12.As shown in the illustrated embodiment, shank 6 comprises outer lower side part 59,60 and external upper part 61,62, and they are combined together the outside forming shank 6 on the whole.In various embodiments, rotary actuation end effector can provide power by motor 65 and power supply 64, and motor 65 is arranged in the top of pistol grip part 26 of shank.Power supply 64 can comprise battery or alternating current power supply.In a preferred embodiment, power supply 64 comprises the lithium ion battery be supported in the pistol grip part 26 of shank 6.According to each embodiment, motor 65 can be DC brush CD-ROM drive motor, and its maximum (top) speed is approximately 5000RPM.Motor 65 can drive the 90 degree of bevel gear assemblies 66 comprising the first bevel gear 68 and the second bevel gear 70.Bevel gear set 66 can drive planetary gear group 72.Planetary gear assembly 72 can comprise the pinion 74 being connected to power transmission shaft 76.Pinion 74 can drive the ring gear 78 coordinated with it, and this ring gear drives spiral-shaped teeth wheel hub 80 through power transmission shaft 82.Ring 84 can screw engagement on helical tooth wheel hub 80.Therefore, when motor 65 rotates, ring 84 utilizes intervenient bevel gear assembly 66, planetary gear assembly 72 and ring gear 78 and advances along spiral-shaped teeth wheel hub 80.
Shank 6 also can comprise the operation motor switch 110(be communicated with percussion trigger 20 and see Figure 10), to receive the actuating movement from percussion trigger 20 when percussion trigger 20 is furthered (or closed) towards the pistol grip part 26 of shank 6 by operator, thus start the cutting/sew application performed by end effector 12.Run motor switch 110 and can be proportional sensor, such as rheostat or rheostat.When pulling the trigger trigger 20 and being furthered, run motor switch 110 and allow electric current to flow to motor 65 from power supply 64.When running motor switch 110 and be rheostat etc., the rotating speed of motor 65 can be roughly proportional with the quantity of motion pulling the trigger trigger 20.That is, if operator only slightly pulls or closed percussion trigger 20, then the rotating speed of motor 65 is lower.Pull the trigger trigger 20(when furthering completely or be in complete make position) time, the rotating speed of motor 65 is its maximum.In other words, user more firmly pulls percussion trigger 20, and the voltage be applied on motor 65 is larger, thus rotating speed is larger.
Shank 6 can comprise the middle handle member 104 adjacent with percussion trigger 20 top.Shank 6 also can comprise the bias spring 112 be connected between the post in middle handle member 104 and the post on percussion trigger 20.Percussion trigger 20 can be biased to its fully open position by bias spring 112.Like this, when operator discharges percussion trigger 20, percussion trigger 20 is pulled to its open position by bias spring 112, and forbidding runs motor switch 110 to stop the rotation of motor 65 thus.In addition, by means of bias spring 112, whenever user closed percussion trigger 20, the resistance that user will be experienced closed procedure, thus the feedback that the rotation amount applied about motor 65 is provided to user.In addition, operator can stop retraction percussion trigger 20, thus forbidding runs motor switch 110 and stops motor 65.Like this, user can stop the deployment of end effector 12, thus provides the mode controlled cutting/tightening operation for operator.
The far-end of helical tooth wheel hub 80 comprises the distally power transmission shaft 120 driving ring gear 122, and described ring gear 122 engages with pinion 124.Pinion 124 is connected to the final drive shaft 48 of final drive shaft assembly.Like this, the rotation of motor 65 causes final drive shaft assembly to rotate, thus starts end effector 12, as mentioned above.
The ring 84 be threaded on helical tooth wheel hub 80 can comprise the post 86 be arranged in the groove 88 of notched arms 90.Notched arms 90 has opening 92 on its opposite end 94, and opening 92 holds the pivot pin 96 be connected between shank outer member 59,60.Pivot pin 96 is also arranged through the opening 100 in percussion trigger 20 and the opening 102 in middle handle member 104.
In addition, communtation motor switch (or end-of-stroke switch) 130 and stop motor (or stroke starts) switch 142 can be comprised at shank 6.In various embodiments, communtation motor switch 130 can be the limit switch being positioned at helical tooth wheel hub 80 far-end, makes the ring 84 be threaded on helical tooth wheel hub 80 contact when it arrives the far-end of helical tooth wheel hub 80 and touch communtation motor switch 130.Upon start up, communtation motor switch 130 sends signal (namely allowing current flowing) to motor 65 and commutates to make its direction of rotation, thus is recalled by the cutter 32 of end effector 12 after cutting operation.
Stop motor switch 142 can be such as normally closed limit switch.In various embodiments, it can be positioned at the proximal end of helical tooth wheel hub 80, touch switch 142 when making ring 84 arrive the near-end of helical tooth wheel hub 80.
In operation, when the operator of apparatus 10 applies actuating movement to percussion trigger 20, run motor switch 110 and detect the concurrent number of delivering letters of deployment of percussion trigger 20 (namely, allow current flowing) to motor 65, such as rotate forward to pull back to operator the speed that the power size of pulling the trigger trigger 20 is directly proportional to make motor 65.Rotating forward of motor 65 makes the ring gear 78 of the far-end of planetary gear assembly 72 rotate then, thus spiral gear cylinder 80 is rotated, and the ring 84 be threaded connection on spiral-shaped teeth wheel hub 80 is distally advanced along spiral-shaped teeth wheel hub 80.The rotation of helical tooth wheel hub 80 also drives final drive shaft assembly as above, and this makes the cutter 32 in end effector 12 be deployed then.That is, make cutter 32 and slide block 33 distally travel through passage 22, thus cut the tissue be clamped in end effector 12.In addition, in the embodiment using stitched type end effector, end effector 12 is made to carry out sew application.
When the cutting/sew application of end effector 12 completes, ring 84 on helical tooth wheel hub 80 will arrive the far-end of helical tooth wheel hub 80, thus communtation motor switch 130 is activated, switch 130 will send signal (that is, allowing current flowing) to motor 65 to make the rotation of motor 65 reverse.This makes cutter 32 bounce back then, and makes the ring 84 on helical tooth wheel hub 80 be moved back into the near-end of helical tooth wheel hub 80.
Middle handle member 104 comprises the rear side engaged with notched arms 90 and takes on 106, as display clear in Fig. 8 and Fig. 9.Middle handle member 104 also has the reach block piece 107 engaged with percussion trigger 20.As explained above, the motion of notched arms 90 is subject to the control of motor 65 rotation.When notched arms 90 advances to far-end along with ring 84 from the near-end of helical tooth wheel hub 80 and is rotated counterclockwise, middle handle member 104 is by unfettered and be rotated counterclockwise.Therefore, when user furthers percussion trigger 20, percussion trigger 20 engages with the reach block piece 107 of middle handle member 104, and middle handle member 104 is rotated counterclockwise.But because rear side shoulder 106 engages with notched arms 90, middle handle member 104 is rotated counterclockwise in the scope being merely able to permit in notched arms 90.So, if motor 65 stops the rotation for some reason, then notched arms 90 will stop operating, and user can cannot further further and pull the trigger trigger 20, because middle handle member 104 can not freely rotate counterclockwise due to the constraint of notched arms 90.
Figure 10 A and Figure 10 B show according to each embodiment of the present invention can be used as run the variable power switch of motor switch 110 or the two states of sensor.Operation motor switch 110 can comprise the compressible dielectric substance 286 between surface portion 280, first electrode (A) 282, second electrode (B) 284 and electrode 282,284, such as electroactive polymer (EAP).Running when motor switch 110 can be arranged in retraction makes surface portion 280 contact percussion trigger 20.Therefore, when pulling the trigger trigger 20 and retracting, dielectric substance 286 is compressed, and as shown in Figure 10 B, electrode 282,284 is drawn closer together together.Because the distance " b " between electrode 282,284 is directly connected to the impedance between electrode 282,284, the larger impedance of distance is larger, and the less impedance of distance is less.Like this, make electrolyte 286 proportional by the impedance between the amount (representing with power " F " in Figure 10 B) compressed and electrode 282,284 due to retracting of trigger 20 of percussion, this can be used for controlling motor 65 in proportion.
Also be illustrated in Fig. 7 to Figure 10 by the element of exemplary closed-system closure trigger 18 being pulled back the anvil 24 of closed (or clamping) end effector 12.In the illustrated embodiment, this closed-system comprises one is connected to closure trigger 18 yoke piece 250 by pivot pin 251, and described pivot pin 251 is inserted into the opening be positioned on both closure trigger 18 and yoke piece 250 of aligning.Closure trigger 18 is pin 252 pivotable pivotally, and pivot pin 252 is inserted through another opening in closure trigger 18, and this opening departs from the position that pin 251 is inserted through closure trigger 18.Therefore, the retraction of closure trigger 18 makes the top of closure trigger 18 be rotated counterclockwise, and yoke piece 250 is attached to closure trigger 18 via pin 251.The far-end of yoke piece 250 is connected to the first closing tray 256 by pin 254.First closing tray 256 is connected to the second closing tray 258.Closing tray 256,258 limits opening jointly, and nearside closure tube 40(is shown in Fig. 4) near-end lay and keep in the openings, make the lengthwise movement of closing tray 256,258 cause the lengthwise movement of nearside closure tube 40.Apparatus 10 also comprises the closed bar 260 being arranged on nearside closure tube 40 inside.Closed bar 260 can comprise window 261, and the pillar 263 be arranged on (the outer lower side part 59 of such as illustrated embodiment) of shank external part is arranged on window 261, so that closed bar 260 is fixedly attached to shank 6.Like this, nearside closure tube 40 can relative to the lengthwise movement of closed bar 260.Closed bar 260 also can comprise the distally axle collar 267, and it to be assemblied in the chamber 269 in nearside ridge pipe 46 and to see Fig. 4 by cap 271() remain on intracavity.
In operation, when yoke piece 250 rotates due to the retraction of closure trigger 18, closing tray 256,258 makes nearside closure tube 40 distally move (namely away from the handle end of apparatus 10), this can make distally closure tube 42 distally move, thus make anvil 24 pivotally pin 25 rotate to clamping or make position.When closure trigger 18 is discharged from latched position, nearside closure tube 40 therefore proximad is slided, thus distally closure tube 42 proximad is slided, by the window that inserts distally closure tube 45 projection 27, this make anvil 24 pivotally pin 25 be switched to and open or unlocked position.Like this, by retraction also locked closed trigger 18, tissue holder can be held between anvil 24 and groove 22 by operator, and can by closure trigger 20 is unlocked this tissue from latched position release after cutting/sew application.
Figure 11 is the schematic diagram according to the current control circuit in the apparatus 10 of each embodiment of the present invention.When operator is initially at the post-tensioning percussion trigger 20 of locked closed trigger 18, runs motor switch 110 and be activated, electric current is flow through from it.If often drive motor commutation sensors switch 130 to open at (end showing also not arrive end effector stroke), electric current will flow to single-pole double-throw relay 132.Because motor commutation sensors switch 130 is not closed, then inducer 134 no power of relay 132, therefore relay 132 will be in its non-"on" position.This circuit also comprises storehouse latch switch 136.If end effector 12 comprises storehouse 34, then switch 136 will be in closure state, thus make current flowing.On the contrary, if end effector 12 does not comprise storehouse 34, then switch 136 disconnects, thus prevents battery 64 from powering to motor 65.
When storehouse 34 exists, switch 136 closes, for single-pole single-throw(SPST relay 138 is powered.When powering for relay 138, electric current flows through relay 136, flows through rheostat (operation motor) switch 110, and arrives motor 65 via dpdt relay 140, thus power for motor 65 and make it rotate forward.
When end effector 12 reaches its stroke end, communtation motor switch 130 is activated, thus closed communtation motor switch 130 is also powered for relay 134.This makes relay 134 present its "on" position, this state makes electric current walk around storehouse latch switch 136 and rheostat 110 and flow to normally closed dpdt relay 142, and flow back into motor 65 via relay 140, but its mode makes motor 65 reversely rotate.
Because stop motor switch 142 is normally closed, therefore electric current will flow back into relay 134 and close to keep it, until stop motor switch 142 disconnects.When cutter 32 bounces back completely, stop motor switch 142 is activated, and stop motor switch 142 is disconnected, thus by motor 65 power-off.
In other embodiments, replace proportion expression switch 110, on-off type sensor or switch can be used.Execute in example at this type of, the rotating speed of motor 65 is by proportional for the power do not applied with operator.Specifically, motor 65 is general with constant speed rotary.But because percussion trigger 20 engages with pinion unit, therefore operator will experience force feedback.
As indication above, in the function of stiching instrument, there is several step that usually must realize with the order determined.Such as, once closure trigger is clamped, firing cycle can be started.After cutter is disposed completely, the retraction of system is next sequential steps.System also comprises power supply (that is, battery or pneumatic means) except user controls, and can reduce the step (thus reducing device complexity) needing user to start, system self can start these steps, as discussed above.
But, may it is desirable to allow user can delay, slow down or stop these original " automatically " to activate intuitively.Such as, identical actuation button will allow in similar U.S. Patent Application Serial Number 11/344, the U.S. Patent No. 7 that 035(is present, 422,139, its disclosure is incorporated herein by reference in full) disclosed in device haptic feedback devices in percussion start, this actuation button can be used for by the user pressing this button during bouncing back slowing down or stop auto-returned system.
Such as, Figure 12 and Figure 13 illustrates an alternative embodiment of the invention, and the trigger 121 that wherein bounces back is supported on percussion trigger 20 for therewith advancing.More specifically, bounce back trigger 121 be pivotably supported percussion trigger pin 96 on and through percussion trigger 20 in groove (not shown) give prominence to.Spring 125 is attached between the coupling 123 of percussion trigger 100 and the mounting portion 127 of retraction trigger 121 so that retraction trigger 121 is biased to unactuated position.Second normally closed retraction switch 131 to be arranged in shank and be orientated to make when percussion trigger 20 at complete actuated position and move between unactuated position completely time, the actuating section 129 of retraction trigger 121 does not start the switch 131 that bounces back.But, mounting portion 127 and the actuating section 129 of retraction trigger 121 can make by pressing retraction trigger 121 towards percussion trigger 20, actuating section 129 and retraction switch 131 to be started and contact, no matter and percussion trigger 20 is positioned at where during retraction process.
As discussed above, when end effector 12 arrives its stroke end, the end of travel switch 130 will be activated.As shown in the example of Figure 13, retraction switch 131 is connected with end-of-stroke switch 130.Because retraction switch 131 is normally closed, therefore when switch 130,131 is all closed, relay 134 will be energized.This makes relay 134 present its "on" position, and this state makes electric current walk around storehouse latching sensor 136 and rheostat 110.Current direction dpdt relay 140 also flows to motor 65 via relay 140, but its mode makes motor 65 reversely rotate.Be closed because stroke starts switch 142, therefore electric current will flow back into relay 134 and close to keep it, until switch 142 disconnects.When cutter 32 bounces back completely, stroke starts switch 142 and disconnects, thus makes motor 65 power-off.But if user wishes the retraction process that slows down, then user can press retraction trigger 121 to start the variable resistance part 133 of retraction switch 131.When the trigger 121 that bounces back is not pressed, the resistance of variable resistance part 133 is minimum.When trigger 121 is pressed, the resistance of variable resistance part 133 is proportional with the circuit being reduced to motor 65 with the pressing force of retraction trigger 121.Press retraction trigger 121 further will to slow down retraction process, until the normally-closed contact part 135 of the switch 131 that bounces back disconnects and stops current direction motor 65.In various embodiments, once user release retraction trigger 121, spring 125 will move to unactuated position retraction trigger 121, and the contact part 135 of switch 131 will be back to normally closed position and therefore allow electric current to flow back into motor 65 to complete retraction process.
Uniqueness and the novel feature of above-mentioned retraction switch and retraction flip-flop circuit configurations also can in conjunction with U.S. Patent Application Publication No.US2010/007674A1 and U.S. Patent No.s 7,422, each embodiment disclosed in 139 uses, and these patents are incorporated herein by reference all in full.Such as, Figure 14 shows another embodiment of current control circuit embodiment of the present invention.When (i) running motor (or percussion) switch 110 closed (being shown as off-state in Figure 14), (ii) safety switch 240 closed (being shown as disconnection in Figure 14) is to show that equipment safety is set up, and when (iii) normally closed latch switch 242 disconnects showing that apparatus is not in blocking, electric current flows through safety switch 240, and it can be LED as shown in figure 14 to flow through locking display lamp 244() and arrive motor 65.When arriving the end of cutting stroke, stroke terminates or direction switch 130 is switched, and reverses the direction (percussion switch 110 is also released) of motor 65.In this condition, electric current also flows through reverse display lamp 246, such as LED, thus the vision providing motor direction to reverse instruction.
As shown in figure 14, circuit also can comprise manual Returning switch 248.When cutting device 32 is only partly pulled the trigger, operator can manually boot this switch.Changing manual Returning switch 248 can make motor 65 reversely rotate, thus makes cutting device 32 return its initial or original position.If user wishes to slow down or stop retraction process, then user presses retraction trigger 121 to start the variable resistance part 133 of retraction switch 131.When trigger 121 is pressed, resistance and pressing force increase the electric current reducing to motor 65 pro rata.Press retraction trigger 121 further will to slow down retraction process, until the normally-closed contact part 135 of the switch 131 that bounces back disconnects and stops current direction motor 65.In various embodiments, once user release retraction trigger 121, spring 125 will move to unactuated position retraction trigger 121, and the contact part 135 of switch 131 will be back to normally closed position and therefore allow electric current to flow back into motor 65 to complete retraction process.
Motorized surgical instrument other is configured in disclosed in name is called in the U.S. Patent Application Publication No.US2010/0076474A1 announced of " Motor-DrivenSurgicalCuttingInstrument " and has, and this application is incorporated herein by reference in full.Such as, Figure 15 is the schematic diagram of another current control circuit according to each embodiment of the present invention.In various embodiments, motor control circuit can comprise one or more integrated circuit (IC), such as processor, memorizer, microcontroller, time circuit etc.In other embodiments, motor control circuit can not comprise any IC.Non-IC current control circuit like this may be favourable, due to the difficulty often of will carrying out disinfection to the surgical instruments comprising IC, complicated and costliness.
When operator initially applies actuating movement to percussion trigger 20 after locked closed trigger 18, run motor switch 110 and be activated (or closed), electric current can be flowed therethrough.If often drive motor commutation sensors switch 130 to open at (end showing also not arrive end effector stroke), electric current will flow to single-pole double-throw relay 132.When motor commutation sensors switch 130 is not closed, the coil 134 of relay 132 is by no power, and therefore relay 132 will be in its non-"on" position.
As shown in figure 15, circuit also can comprise the resistive element 144 and switch 146 that are connected in parallel, and element wherein in parallel and relay 132 are connected in series.Resistive element 144 and switch 146 are also connected to power supply 64.Switch 146 can be controlled by the control circuit 148 in response to cutting device position sensor 150.According to each embodiment, as cutting device 32(i) closely its start of a run and (ii) closely its stroke end time, control circuit 148 can cut-off switch 146.Such as, as cutting device 32(i) from its start of a run 0.001 inch and (ii) from 0.001 inch, its stroke end time, as determined in cutting device position sensor 150, control circuit can cut-off switch.When switch 146 disconnects, current flowing resistance element 144, then flows through relay 132, relay 138, runs motor sensor switch 110, arrive motor 65.The electric current flowing through resistive element 144 reduces the size of current being delivered to motor 65, thus the power that reduction is carried by motor 65.Therefore, as cutting device 32(i) closely its start of a run or (ii) closely its stroke end time, the power reduction of being carried by motor 65.Otherwise once cutting device 32 moves enough away from starting point or the end of its travel point, control circuit 148 gets final product Closing Switch 146, thus short circuit resistive element 144, thus be increased to the electric current of motor 65, and then increase the power carried by motor.
According to each embodiment, current control circuit also comprises the overall latching sensor switch 136a-d limiting interlock circuit 137, and when relay 132 no power, the electric current from relay 132 passes through interlock circuit 137, so that the electricity operation of starter 65.Each latching sensor switch 136a-d presence or absence that can be configured to respectively in response to respective conditions remains open (namely non-conductive) on off state or closed (namely conducting electricity) on off state.As existed by during percussion at apparatus 10, then any one in respective conditions can make not satisfied cutting and sew application and/or the damage to apparatus 10.Latching sensor switch 136a-d can in response to condition comprise such as: there is not storehouse 34 in (a) passage 22; (pulling the trigger such as) storehouse 34 of existence in (b) passage 22; And (c) anvil 24 opens (in other words non-adequate closure) position relative to passage 22.Latching sensor switch 136a-d can in response to other condition, such as component wear, the cumulative number that can operate based on the percussion produced by apparatus 10 and inferring.Therefore, in various embodiments, if deposit in these conditions any one, then blocking sensing switch 136a-d remains open on off state, prevents passing through of the electric current needed for the operation of starter 65 thus.In various embodiments, only after all conditions is all repaired, just allow to pass through electric current by latching sensor 136a-d.Should be appreciated that above-mentioned condition only provides by way of example, and additional latching sensor switch can be provided, in response to other condition harmful to the operation of apparatus 10.Should be appreciated that may not to exist or unessential embodiment for one or more in wherein above-mentioned condition similarly, the quantity of latching sensor switch may be less than diagram quantity.
As shown in figure 15, latching sensor switch 136a can utilize normal open switch configure realize, make when storehouse 34 be in corresponding to its by the position of the correct accommodation of passage 22 in time, remain closed on off state.When storehouse 34 is not arranged in passage 22 or correctly do not install (such as unjustified), latching sensor switch 136a remains open on off state.Latching sensor switch 136b can utilize normal open switch to configure and realize, and makes, only when there is unworn storehouse 34(in passage 22 namely, to have the storehouse 34 of the slide block 33 at non-firing position) time, remain closed on off state.Latching sensor switch 136b is made to remain open on off state with the existence in the storehouse 34 crossed in passage 22.Latching sensor switch 136c can utilize normal open switch to configure and realize, and makes, when anvil 24 is in the close position relative to passage 22, to remain closed on off state.Latching sensor switch 136c can control according to time delay feature, wherein only at anvil 24 after make position predetermined hold-time section, just remain closed on off state.
Latching sensor switch 136d can utilize normally closed switch to configure and realize, and makes, only when the cumulative number of the percussion produced by apparatus 10 is less than pre-determined number, just to remain closed on off state.Latching sensor switch 136d can be communicated with enumerator 139, and enumerator 139 is configured for: the counting of the cumulative number that the percussion keeping representative to be undertaken by apparatus 10 operates; Relatively this counting and pre-determined number; And compare based on this on off state controlling latching sensor switch 136d.Although illustrate individually in fig .15, should be appreciated that enumerator 139 can be integrated with latching sensor switch 136d to form fexible unit.Preferably, enumerator 139 is embodied as the electronic installation with input, increases progressively kept counting for the transition based on the discrete electric signals being supplied to it.Should be appreciated that and also can use mechanical counter, it is configured to based on machinery input (such as, pulling the trigger the retraction of trigger 20) and keeps counting.When being embodied as electronic installation, each percussion operation transition any discrete electric signals be once present in circuit can be used for enumerator 139 and inputs.Such as, as shown in figure 15, the discrete electric signals made by the startup of stroke sensor 130 can be used.Enumerator 139 can control the on off state of latching sensor switch 136d, makes to work as kept counting when being less than the pre-determined number be stored in enumerator 139, remains closed on off state.When kept counting equals pre-determined number, enumerator 139 makes latching sensor switch 136d remain open on off state, prevents electric current from passing through wherein thus.Should be appreciated that the pre-determined number stored by enumerator 139 can selectably regulate.According to each embodiment, enumerator 304 can be communicated with the external display (not shown) of such as LCD display, for indicating the counting that keeps or the difference between pre-determined number and the counting kept to user in this indicator integral to apparatus 10.
According to each embodiment, interlock circuit 137 can comprise the visible one or more display lamp of the user of apparatus 10, for the situation of at least one in display latching sensor switch 136a-d.More details about this type of display lamp are found in name and are called in the U.S. Patent Application Publication No.2007/0175956 announced of " ElectronicLockoutsandSurgicalInstrumentIncludingSame ", and this application is incorporated herein by reference in full.This application also comprises exemplary installation constitution and the configuration of latching sensor switch 136a-d.
In the illustrated embodiment, when latching sensor switch 136a-d totally remains closed on off state, single-pole single-throw(SPST relay 138 is energized.When relay 138 is energized, electric current flows through relay 138, flows through and runs motor switch sensor 110, and arrive motor 65 via dpdt relay 140, thus power for motor 65 and make it rotate forward.According to each embodiment, because relay 138 is just remained on "on" position once be energized by the output of relay 138, until relay 132 is energized, therefore interlock circuit 137 can not be used for stoping it to operate after motor 165 starts, even if one or more in interlocking sensing switch 136a-d remain open on off state subsequently.But in other embodiments, may be necessary or in other words wish to connect interlock circuit 137 and relay 138, making one or more latching sensor switch 136a-d to remain closed on off state, to maintain its operation after motor 165 starts.
Rotating forward of motor makes ring distally move, thus forbids stop motor sensor switch 142 in various embodiments.Because switch 142 is normally closed, the solenoid 141 being therefore connected to switch 142 can be energized.Solenoid 141 can be conventional pushing-type solenoid, and this solenoid causes plunger (not shown) axially to extend when being energized.The extension of plunger can operate that closure trigger 18 is remained on advanced position, prevents anvil 24 from carrying out (when namely not activateding at switch 142) in process in percussion operation thus and opens.When solenoid 141 power-off, plunger bounces back, and making may manual release closure trigger 18.
When actuation member part reaches its stroke distalmost end, communtation motor switch 130 will be activated, thus Closing Switch 130 is also powered for relay 132.This makes relay 132 present its "on" position (not shown in Figure 11), this state makes electric current walk around interlock circuit 137 and run motor resistor switch 110 and flow to normally closed dpdt relay 140, and flow back into motor 65 via relay 140, but its mode makes motor 65 reversely rotate.Because stop motor sensor switch 142 is normally closed, therefore electric current will flow back into relay 132 and will be energized to keep it, until switch 142 disconnects.When cutter 32 bounces back completely, stop motor sensor switch 142 starts, and switch 142 is disconnected, thus by motor 65 power-off and to solenoid 141 power-off.
In the embodiment shown in fig. 15, adopt not shown with the trigger 121(Figure 15 that bounces back) the normally closed retraction switch 137 that engages.When the switch 137 that bounces back starts, it disconnects to stop electric current to the flowing of motor 65.In alternative embodiment (Figure 15 A), the rheostat 137 ' that the replaceable one-tenth of normally closed retraction switch 137 engages with retraction trigger 121.In such embodiments, when the trigger 121 that bounces back is not pressed, the resistance of rheostat is minimum, to allow maximum current direction motor 65.When depressed, resistance and pressing force increase pro rata, to be reduced to the electric current of motor.Figure 15 B is shown in by this type of rheostat also replaceable one-tenth switch 131(that bounces back as mentioned above).
The accidental activation of anti-stopping power inner cutter: the power that the introducing of dynamical system makes apparatus function no longer be limited to user to apply, but the accidental activation of firing cycle may become more general problem." shock " starts control piece and makes apparatus start percussion and will become more and more easier, thus the locking in release storehouse, or even started when user is not also discovered pull the trigger and it " is pushed " to tissue.In order to eliminate this problem, auxiliary unblock firing switch or button can be used to unlock firing lock.The name of authorizing the people such as Swayze is called the U.S. Patent No. 7 of " ElectronicLockoutsandSurgicalInstrumentIncludingSame ", 644, disclose various locking structure in 848, the disclosure of this patent is incorporated herein by reference in full.This prevents two of accidental activation kinds of switching systems closely similar with for power saw industry and military.This auxiliary switch can discharge the lock on percussion trigger or only power to control piece.
As mentioned above, when using two-pass electrical equipment, first operator pulls back and locked closed trigger 18.Figure 16 and Figure 17 shows an embodiment of the mode of the pistol grip part 26 closure trigger 18 being locked onto shank 6.In the illustrated embodiment, pistol grip part 26 comprises hook 150, and it is biased to be rotated counterclockwise around pivoting point 151 by torsionspring 152.In addition, closure trigger 18 comprises closed bar 154.When operator furthers closure trigger 18, the sloping portion 156 of closed bar 154 engagement hook 150, thus upwards (or in Figure 16 and Figure 17 clockwise) rotary hook 150, until closed bar 154 completely by sloping portion 156, enter in the recess 158 sunk of hook 150, thus closure trigger 18 locking to be put in place.Operator discharges closure trigger 18 by the slip release-push 160 of lower pushing on the rear side or offside of pistol grip 26.Release-push 160 is moved in lower sliding makes hook 150 turn clockwise, thus closed bar 154 is discharged from the recess 158 sunk.Be configured in U.S. Patent No. 7,422 for other of locked closed trigger 18 releasedly, disclosed in having in 139, this patent is incorporated herein by reference.
As found out in Figure 16 and Figure 17, in various embodiments, closed lock-switch 151 can be arranged in hook 150, make it only when hook 150 is latched put in place time just startup.But closed lock-switch 151 can be arranged in pistol grip part 26 to be started by closure trigger 18 when closure trigger 18 locking puts in place.In other alternative embodiment, closed lock-switch 151 is installed to end effector, makes it only when anvil or other moveable portion are in " closing " position to start.No matter the particular location of closed lock-switch 151, in various embodiments, closed lock-switch is normal open switch, and it will close when closure trigger 18 locks or be otherwise manipulated to by end effector " closing " position.
Figure 18 is the schematic diagram of the circuit of apparatus 10 according to each embodiment of the present invention, shows the use of closed lock-switch 151.As found out in the figure, even if there is storehouse, electric current is not allowed to flow to motor 65 from battery 64 yet, except non-closed lock-switch 151 closes.Therefore, motor 65 can not operate, unless closure trigger is in the make position of locking, this also reflects that end effector is in closure state.
Each embodiment also can comprise starting switch 153, and starting switch 153 must be started by surgeon, then just allows electric current flow to other circuit block from battery 64 and finally flow to motor 65.Starting switch 153 often leaves, and can be positioned at the rotine positioning place on shank 6.See Fig. 1.Therefore, in these embodiments, before closing starting switch 153 by surgeon, even if end effector comprises storehouse and closure trigger 18 is locked in make position, electric current also can not be allowed to flow to motor 65.In alternative embodiment, starting switch 153 can comprise mechanical switch, and it prevents percussion trigger 20 from rotating towards pistol grip part physical, except non-switch 153 moves to actuated position.
The active adjustable slit staple height of power inner cutter: always seeking for many years to carry out adjusting staple height according to tissue thickness and type.Recently, be filed in JIUYUE, 2005 U.S. Patent Application Serial Number of 21 days 11/231, the U.S. Patent No. 7 that 456(is present, 407,078) and be filed in the present U.S. Patent No. 7,467 of in JIUYUE, 2006 U.S. Patent Application Serial Number of 29 days 11/540,735(, 740) relate generally to a kind of flexible coupler member or the support member that allow the load expansion instrument gap utilizing the thicker tissue in device to cause, the disclosure of these two parts of patents is incorporated herein by reference all in full.This " passive " variable staple height makes the thickness of tissue form higher staple shape.
In apparatus, introduce power supply is make electricity consumption create condition to the height changing inner member in dynamic coupling element, can by surgeon or apparatus " initiatively " the change staple height arranging desired height.This inner member can be shape-memory material, and electricity can change its temperature, thus makes it change its physical height according to default configuration.Another kind of feasible method adds electroactive polymer (EAP), when electric field is introduced, makes it change its height and width.In addition, the 3rd embodiment uses traditional linear electric stepping element, and this element can make little adjusting screw element engage coupling ratchet in bar (couplingbeam) scope, thus regulates its height.
More specifically and with reference to Figure 19 and Figure 20, the end effector 12 of each embodiment of the present invention is shown as anvil 24 in the cross-section and is in closed or clamped position.As can be seen, cutting device or cutter 32 have lower activator portion 37, and lower activator portion 37 has the threaded sleeve pipe or nut portion 37 ' that are configured to be threadedly engaged with screw shaft 36.In addition, fin 39 is laterally outstanding with the corresponding slipper 23 in the face of passage 22 from each side of nut portion 37.As also found out in Figure 19, cutter 32 has upper activator portion 41, and it is dimensioned in longitudinal T-slot 43 of being contained in anvil 24.As found out in Figure 19, on a pair, alignment pin 41 ' is laterally projecting from every side of the upper activator portion 41 of cutter 32.Each upper alignment pin 41 ' is configured to stretch in the corresponding part of the T-slot 43 be arranged in anvil 24.Therefore, when cutter 32 is distally driven through end effector 12, fin 39 and alignment pin 41 ' are used for the amount in the space between anvil 24 and storehouse 34 to be restricted to the maximum of predetermined space.
Each embodiment of the present invention is provided with the device of the amount for regulating the space between anvil 24 and the storehouse 34 being arranged in passage 22.Such as, in certain embodiments, each fin 39 support slipper contact 45, slide block contact 45 is for slidingly contacting with the corresponding electric contact 47 in each slipper 23 being arranged on passage 22.Electric contact 47 is elongated and extends in passage 22, thus when cutter 32 is driven in passage 22, corresponding with it all the time electric contact 47 in slide block contact 45 keeps in touch.Electric contact 47 is connected to power supply or battery 64 and is configured to the electric current that receives when motor 65 is powered distally to drive cutter 32 from power supply or battery 64.In addition in certain embodiments, electroresponse is installed to each alignment pin 41 ' in height adjusting equipment 49, as shown in figure 19.Height adjusting equipment 49 is conductively coupled to slide block contact 45 to receive the electric current from it.In various embodiments, height adjusting equipment 49 can comprise shape-memory material, and this material changes its physical height when being energized due to preset configuration.Therefore, according to the received magnitude of current, height adjusting equipment 49 can extend towards storehouse 34 and push anvil 24, thus reduces the amount of space between storehouse 34 and anvil 24.This amount of this type of material and the magnitude of current of reception proportional and be known.Control circuit (not shown) can be adopted to control the amount in span and the space therefore between anvil 24 and storehouse 34.In other embodiments, height adjusting materials comprises electroactive polymer (EAP), and it remains in the recess in pin 41 or is otherwise attached to this recess.
Figure 21 shows and is similar to another embodiment embodiment illustrated in fig. 19.But in this embodiment, height adjusting equipment 49 to be arranged in anvil 24 and by being directly attached to the conductor of power supply from power supply received current.Therefore, in this embodiment, contact 43 and 45 as above is not needed.
Figure 22 shows optional knife assembly 32 ', it is substantially the same with knife assembly 32 as above, be installed to independent upper activator portion 302 unlike alignment pin 41 ', upper activator portion 302 can optionally move the bottom 300 relative to knife assembly 32 ' on vertical direction " VD ".Second motor 304 can be installed to bottom 300 and have driving screw 306, and driving screw 306 is threadedly engaged the nut portion 308 of keeper part 302.Upper keeper part has T-shaped ligule part 310, it stretches into the groove 312 of the correspondingly-shaped in bottom 300 slidably, to prevent upper keeper part 302 relative to the rotation of lower keeper part 300, allow upper keeper part 302 relative to lower keeper part 300 vertical motion simultaneously.Therefore, the distance between upper keeper part 302 and lower keeper part 300 regulates by powering to the second motor 304.Therefore, if surgeon wants to reduce the amount of space between anvil 24 and storehouse 34, then the second motor 304 is powered to rotate along first direction, thus keeper part 300 pulls keeper part 302 down.But if surgeon wishes to increase the amount of space between anvil 24 and storehouse 34, then the second motor 304 rotates in opposite direction.
Each embodiment of the present invention comprises end effector means of illumination and the method for illuminating operative site when adopting electronic inner cutter.At present, when end effector be in deployed position or close to this position time, due to exist adjacent structure projection shade and after even whole end effector is positioned at another structure, surgeon is difficult to observe therapentic part sometimes.Figure 23 shows the far-end 402 of the surgical stapling device 400 of each embodiment of the present invention with general form, it comprises anvil 404, storehouse main body 406 and passage 408.As shown in the figure, additional source of light 410 can be set at the end of storehouse main body 406, with illuminated tissue 401.This light source 410 can be any combination of the actual device converting electrical energy into light, include but not limited to quasiconductor (such as LED), conventional incandescent light or incandescent lamp bulb, el light emitting device or laser instrument, it can by the battery powered be supported in apparatus shank or in other embodiments by AC-powered.Permission surgeon is not only directly illuminated therapentic part by such device, and backlight can be provided to see the interior section of such as vascular for structure, and is conducive to the laser designator of use through conventional lenses to point out paid close attention to region to other people.
In various embodiments, one or more contacts 420 of the contact 422 be configured in mating passage 408 are provided with at the back of storehouse main body 406.See Figure 24.This makes surgeon can power to contact sets via the switch be positioned on shank 430, thus provides required light 410.This switch even can have variable intensity, the switch controlling main device actuation speed as described herein.Other illuminator for illuminating the end of the anvil being attached to circular surgical staplers is disclosed in name disclosed in 22 days April in 2010 and is called that, in the U.S. Patent Application Publication No.US2010/0096435A1 of " SurgicalStaplingInstrumentWithApparatusForProvidingAnvil PositionFeedback ", whole disclosures of this application are incorporated herein by reference.
The name being disclosed on August 2nd, 2007 is called that its whole disclosure of U.S. Patent Application Publication No.2007/0175949A1(of " SurgicalInstrumentHavingaFeedbackSystem " is incorporated herein by reference) in Figure 45-47 of the disclosure, also disclose Output Display Unit, this display mainly can show this position feedback, locked status, percussion number etc. of end effector.This will minimize in the more difficult problem of user, i.e. the identification of device situation, particularly at the locked status of the situation lower device of non-actuating device.Other feedback useful to user is the immediate feedback of state when loading storehouse.As in above-mentioned application, this can be aggregated into the locking instruction on shank 430.Display lamp 432(is LED, glass bulb, LCD, phonetic alarm, vibrator etc. such as) can be only relevant to the state of storehouse blocking device or mechanism, provide this information to make it to surgeon.This LED can be positioned on shank 430.See Figure 26.Alternatively, display lamp 434 can be positioned near far-end 402, can to surgeon and loading person whether the provide storehouse instant messages of " ready ".See Figure 25.This can be completed by the switch directly related with mechanical latching or contact sets.Switch or contact make closing of circuit, provide adequate information to make display lamp.This closing contact group is by the conducting element in slide block (parts 33 of U.S. Patent Application Publication No.US2007/0175958), and two contacts can be positioned near passage (parts 22).Detecting the another kind of mode of locked status is indirectly by apparatus situation (example 1: the storehouse of loading and do not pull the trigger intention and will show that locking does not engage; Example 2: the apparatus of percussion and do not install new storehouse and will show that locking engages; Etc.).Another embodiment is from arranging LED or vision instruction with it in storehouse.When storehouse snap-fastener puts in place, the contact powered to storehouse is just established.If storehouse is pulled the trigger, not only mechanical closure system stops the propelling of cutter, and storehouse circuit lights the LED on storehouse, thus on scope monitor, notify that surgeon storehouse is blocked.This by placing baby battery or other charge accumulator further expands, to eliminate the needs be connected with main installation's power source in storehouse.Also storehouse circuit can be set, light locking lamp when device closes, thus notify the storehouse of useful mistake in user device.
Power joint is connected and the indication feedback of storehouse color: type (color) and the joint rotation angle of instruction institute binning are considered to surgeon be useful.Joint rotation angle instruction realizes by various ways, comprises such as with the numeral of LED arc display or graphics mode.The position of this instruction can correct position on shank or on the axle of device closing on end effector.End effector feedback can be active mode or passive mode.Active mode lights additional LED to represent angle.Passive mode can be the cake only illustrating and light for half, and therefore surgeon can the joint motions situation of intuit's end effector.Along with deeply probing into surgery, more and more obviously, surgeon needs to watch operative site attentively, instead of the shank of apparatus.Also start to understand the demand of surgeon for the complete feedback of status from device.Joint rotation angle can be illustrated as a part for articulated joint self.Available display lamp, LED etc. represent different angles, or even can indicate angle by small LCD.This makes surgeon can obtain some feedbacks of the angle departing from the straight angle, and therefore he/her can navigate easily and get back to this angle after removing and inserting.Another problem indicates " obviously " of the color in the storehouse in device.This can be realized by the colour coding optical arrays on end effector or storehouse.This information also can be passed shank back and carry out " redundancy " display, to guarantee that the probability of obscuring of the storehouse type in jaw becomes minimum.Another improvement can comprise the small pieces spring contact being connected to adjoining plate face, storehouse, whether has reached smallest group active pressure in instruction jaw.This minimum pressure can indicate whether in thick thin tissue of having organized storehouse to be used in application at least, if plate face does not have enough organizational stresss can not be luminous.
May need the method for introducing non-sterile set of cells (if PLD becomes crucial customer demand, can by electronic device and set of cells integrated).For inserting non-sterile set of cells in reusing appts what independently sterilize, existing patent in industry is bored in shaping.This innovation is intended to improve original concept in the following way: in the process inserting non-sterile set of cells, uses disposable apparatus aseptic packaging to protect the aseptic of apparatus.Another improves is have design " hatch " door in apparatus, and this door can be closed after insertion set of cells but before described device takes out from final aseptic packaging.Then this hatch meeting " accommodation " may pollute the non-sterile battery in aseptic operation region.Method herein will comprise the additional package layer with perforated area, battery is pushed by this perforated area, pushing style makes skin break and allows battery pass, or passes through together along with the electrode group of battery, is only punctured by the exposed syringe needle of battery when inserting completely.The alternative method of the method allows the internal terminal of rifle body (being positioned at the depths of battery protection cavity) puncture aseptic isolation and to insert the pin hole of set of cells.Then, by aseptic stack seal system, hatch is closed.Then rifle body normally can transfer to aseptic area as any sterile device.
The loading of localizer example I linear encoder and parameters of hydraulic motor controls: United States Patent (USP) 6,646,307 and 6,716,223 disclose for measuring rotation and torque correlation to control the mechanism of parameters of hydraulic motor, and according to the identification of end Actuator configuration and load being optimized to the mechanism of those parameters.U.S. Patent Application Publication No.2007/0175958 shows the method for the reach by using main shaft in figures 8-13, and how to use this type of linear movement control to come the position of control trigger.For electronic linear control method, the method for identical type can be used.Press the plunger that at least one spring is biased, under such mechanism, its length of end effector identifiable design and type, can confirm the type of executor to shank and can allow the length of motor operation.The rotation of motor can be converted to linear gear rack or cable motion from rotary motion, and then this can be used to the voltage of governor motor, electric current and speed, to change the linear movement of required control slide block.Then this control slide block can be directly coupled to cutter actuation movement.This control slide block can have discrete or continuous print " stopping " position, and these positions are denoted as maximum " moving ahead " linear displacement before retraction by plunger calibration device.
The identification that the modular with Linear Driving loads: the validity feature of surgical instruments is the ability identifying the end effector being attached to apparatus.For powered surgical stiching instrument, multiple dissimilar end effector can be attached.In addition, a kind of end effector can have at least one and optionally uses or the function of enabling and/or feature.The invention discloses the method for identifying the end effector be attached.It should be noted that " type " of end effector mentioned below is not limited to the end effector coupled with machinery, pneumatic type or hydraulic way.By detecting this end effector, described apparatus can perform different action, adjustment operation parameter, and indicates available function etc.
End effector forms electrical connection when being attached to apparatus.Apparatus is communicated with end effector and reads at least one in several signal.The position of the switch or contact position indicate the end effector of which kind of type to be loaded onto.Measure the impedance of passive element, result indicates the end effector of which kind of type to be loaded onto.
End effector and apparatus have radio frequency and are connected, and data are transmitted between end effector and apparatus along at least one direction.
End effector and apparatus have acoustics and are connected, and data are transmitted between end effector and apparatus along at least one direction.
End effector and apparatus have optics and are connected, and data are transmitted between end effector and apparatus along at least one direction.
End effector has mechanical connection, and element (such as switch or contact) joins in the apparatus of this element of identifiable design by this connection, thus data are transmitted between end effector and apparatus along at least one direction.
Although illustrate the present invention by describing several embodiment and described in detail exemplary embodiment, applicant is not intended to the range constraint of claim or is restricted to by any way in these details.Those skilled in the art can easily find out additional advantages and modifications form.
Such as, although above-described embodiment has advantage for the surgical interruption and suture instruments 10 adopting endoscope, similar embodiment can be used in other clinical operation.Generally believe, endoscopic procedure is more common than the operation of abdominal cavity mirror.Therefore, endoscope formula operation of the present invention and equipment are discussed.Such as, but term used herein, " endoscope type " should not be understood to limit the invention to only in conjunction with the surgical instruments that endoscope type pipe (that is, the trocar) uses.In contrast, the present invention it is believed that to can be used for entering and is limited in any operation of minimal incision *, includes but not limited to abdominal cavity mirror operation and abdominal.
Be incorporated to any patent of the application, announcement or out of Memory whole or in part with way of reference only with under existing definition as herein described, statement or the afoul degree of other open material be not incorporated to the application at be incorporated to material according to stating.Similarly, the disclosure that the application clearly sets forth instead of any conflict material that mode of quoting as proof is incorporated to the application.
Although by the present invention exemplarily property design be described, can also modify to the present invention in spirit and scope of the present disclosure.Therefore present patent application is intended to contain any variations, purposes or the adaptation form that adopt its general principles.In addition, present patent application is intended to contain and departs from the disclosure but still the known or used modification had in practical framework in field belonging to the present invention.
Claims (18)
1. a surgical fastener equipment, comprising:
A. shank; Slender axles, described slender axles have the near-end being attached to described shank and the far-end extended from described slender axles; End effector, described end effector is included in the proximal end pivotable of described end effector and a pair jaw that can move between the open and the closed positions; And comprising the storehouse of multiple surgical fastener, described storehouse is attached to described end effector;
B. for disposing the electric actuator of described surgical fastener, described actuator comprises power supply and motor, described actuator comprises slender member, and described slender member extends through described axle and can distally move into described end effector for disposing described surgical fastener and the described end effector that can proximally move out of backward;
C. trigger, described trigger is attached to described shank and has open position and make position, and when being in described make position, described trigger can start described actuator; And
D. electricity starts changement, described electricity starts changement and moves to proximal position for making described slender member from the farthest side position in described end effector, the actuating making described electricity start changement causes described trigger movement to described open position, and wherein after described changement starts, the motion proximally of described slender member can be stopped by making described trigger turn back to its make position.
2. surgical fastener equipment according to claim 1, wherein said motor is controlled by motor control circuit, described motor control circuit comprises and is connected to described power supply and by the operation motor control switch of described trigger operation, make when described trigger movement is to described make position, described operation motor control switch allows electric current to flow to described motor along first direction, to make described motor, described slender member is distally moved in described end effector, and wherein said electricity startup changement is included in the communtation motor switch in described motor control circuit, described motor is flow to along second direction for making described electric current, to bounce back described slender member along proximal direction during the described farthest side position arriving in described end effector at described slender member to make described motor.
3. surgical fastener equipment according to claim 2, wherein said motor control circuit also comprises stop motor switch, when described slender member moves to recent side position, described stop motor switch stops the flowing along the described electric current of described second direction.
4. surgical fastener equipment according to claim 2, wherein said changement also comprises:
The retraction trigger operationally supported by described shank; And
Retraction switch, described retraction switch is in described motor control circuit and by described retraction trigger operation, make after described retraction flip-flop toggle, and described retraction switch stops the flowing of the described electric current flowing to described motor along described second direction.
5. surgical fastener equipment according to claim 4, wherein said retraction switch comprises rheostat.
6. surgical fastener equipment according to claim 5, wherein said retraction switch also comprises normally-closed contact part.
7. surgical fastener equipment according to claim 4, wherein said retraction trigger is supported on described trigger movingly.
8. surgical fastener equipment according to claim 7, wherein said retraction trigger optionally can move to actuated position from unactuated position on described trigger.
9. surgical fastener equipment according to claim 8, wherein said retraction trigger is biased in described unactuated position.
10. a surgical fastener equipment, comprising:
Shank;
Operationally be couple to the end effector of described shank;
Can unactuated position in described end effector in described end effector and the actuator that moves between actuated position;
Electro-motor, engage described electro-motor and described actuator operable, move to described actuated position to make described actuator from described unactuated position distally actuation movement to be optionally applied to described actuator, and nearside actuation movement is optionally applied to described actuator and retracts to described unactuated position to make described actuator from described actuated position;
Operationally be couple to the percussion trigger of described shank;
For controlling the motor control circuit of described motor, described motor control circuit comprises:
Be connected to described motor for the power supply for described motor power supplying; And
Current control circuit, described current control circuit is connected to described power supply for the electric current controlling to be supplied to from described power supply described motor, and described current control circuit comprises:
Run motor control switch, described operation motor control switch is connected to described power supply and by described percussion trigger operation, make when described actuating movement is applied to described percussion trigger, described operation motor switch allows electric current to flow to described motor along first direction, to make described motor, described distally actuation movement is applied to described actuator;
Be connected to the communtation motor switch of described power supply, make when described actuator has been moved to farthest side actuated position, described communtation motor switch allows electric current to flow to described motor along second direction, to make described motor that described nearside actuation movement is applied to described actuator, described current control circuit can also change the described applying of described nearside actuation movement when receiving and being applied to the retracting motion of described current control circuit.
11. surgical fastener equipment according to claim 10, also comprise the retraction trigger operationally supported by described shank, and wherein said current control circuit comprises retraction switch, described retraction switch is connected to described power supply and by described retraction trigger operation, make when described retracting motion is applied to described retraction trigger, described retraction switch changes the flowing of electric current along described second direction to described motor.
12. surgical fastener equipment according to claim 11, the switch that wherein bounces back comprises rheostat.
13. surgical fastener equipment according to claim 12, wherein said retraction switch also comprises normally-closed contact part.
14. surgical fastener equipment according to claim 11, wherein said retraction trigger is supported on described percussion trigger movingly.
15. surgical fastener equipment according to claim 14, wherein said retraction trigger optionally can move to actuated position from unactuated position on described percussion trigger.
16. surgical fastener equipment according to claim 15, wherein said retraction trigger is biased in described unactuated position.
17. surgical fastener equipment according to claim 11, wherein when described retracting motion is applied to described retraction trigger, described retraction switch stops the flowing of electric current along described second direction to described motor.
18. 1 kinds of surgical fastener equipment, comprising:
Shank;
Slender axles, described slender axles have the near-end being attached to described shank;
Passage, described passage is couple to the far-end of described slender axles and the surgery storehouse that can operationally support wherein;
Actuator, described actuator is supported movingly distally advances with nearside in described passage;
Operationally be couple to the percussion trigger of described shank;
By the retraction trigger be operationally supported on described percussion trigger;
Electro-motor, engage described electro-motor and described actuator operable, distally actuation movement is optionally applied to described actuator to make described actuator from unactuated position distal motion to actuated position, and nearside actuation movement is optionally applied to described actuator and retracts to described unactuated position to make described actuator from described actuated position; And
For controlling the motor control circuit of described motor, described motor control circuit comprises:
Power supply, described power supply is connected to described motor for being described motor power supplying; And
Current control circuit, described current control circuit is connected to described power supply for the electric current controlling to be supplied to from described power supply described motor, and described current control circuit comprises:
Run motor control switch, described operation motor control switch is connected to described power supply and by described percussion trigger operation, make when described actuating movement is applied to described percussion trigger, described operation motor control switch allows electric current to flow to described motor along first direction, to make described motor, described distally actuation movement is applied to described actuator;
Be connected to the communtation motor switch of described power supply, make when described actuator has been moved to farthest side actuated position, described communtation motor switch allows electric current to flow to described motor along second direction, to make described motor, described nearside actuation movement is applied to described actuator; And
Retraction switch, described retraction switch is connected to described power supply and by described retraction trigger operation, makes when described retracting motion is applied to described retraction trigger, and described retraction switch changes the flowing of electric current along described second direction to described motor.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/846,228 US20110006101A1 (en) | 2009-02-06 | 2010-07-29 | Motor driven surgical fastener device with cutting member lockout arrangements |
US12/846,249 US8453907B2 (en) | 2009-02-06 | 2010-07-29 | Motor driven surgical fastener device with cutting member reversing mechanism |
US12/846,249 | 2010-07-29 | ||
PCT/US2011/045319 WO2012015799A1 (en) | 2010-07-29 | 2011-07-26 | Motor driven surgical fastener device with cutting member reversing mechanism |
Publications (2)
Publication Number | Publication Date |
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CN103037779A CN103037779A (en) | 2013-04-10 |
CN103037779B true CN103037779B (en) | 2015-12-16 |
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CN201180036978.8A Active CN103037779B (en) | 2010-07-29 | 2011-07-26 | There is the motor driven surgical fastener device of cutting element changement |
CN201180036981.XA Active CN103037780B (en) | 2010-07-29 | 2011-07-26 | Motor driven surgical fastener device with cutting member lockout arrangements |
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CN201180036981.XA Active CN103037780B (en) | 2010-07-29 | 2011-07-26 | Motor driven surgical fastener device with cutting member lockout arrangements |
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US (3) | US20110006101A1 (en) |
EP (3) | EP3366230B1 (en) |
JP (2) | JP5788511B2 (en) |
CN (2) | CN103037779B (en) |
AU (2) | AU2011282921B2 (en) |
BR (2) | BR112013002148B1 (en) |
CA (2) | CA2806429C (en) |
PL (2) | PL2598048T3 (en) |
WO (2) | WO2012015794A1 (en) |
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2010
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